Door-holder.



No 670,79l. Patented Mar. 26, MIDI. P. F. LEHMANN.

0R HOLDER.

:A ica. ion filed July 16. 1900. (No Model.)

2 Slieets-5haet 2.

W/TNESSES INVENTOR UNITED STATES PATENT I FFICE.

PAUL F. LEHMANN, OF CHICAGO, ILLINOIS.

DOOR-HOLDER.

SPECIFIGATION forming part of Letters Patent No. 670,791, dated March26, 1901.

Application filed July 16, 1900. Serial No. 23.752. \lIo mociel.)

To all whom it may concern:

Be it known that LPAUL F.LEHMANN,a citizen ofthe United States ofAmerica, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements inDoor-Holders, of which the following is a specification.

My invention relates to door-holders, and has for one object theconstruction of a device that will hold a door or a pivoted window ineither of two positions or will permit it to be freely opened or closed.Another object is to make it extremely difficult or impossible tooperate the device from the outside. One of the positions in which thedevice holds the door is tightly shut, and in this case it serves thepurpose of a bolt or look. Another position is holding the door slightlyajar and so that it cannot be blown open or shut by the wind.

My invention is illustrated in the accompanying drawings, in which-Figure 1 is a section of a door and jamb with the device in position tohold the door tightly shut. Fig. 2 is a similar section with the deviceholding the door ajar. Fig. 3 shows the device in a position to permit afree movement of the door. Fig. 4: is an enlarged detail, and Fig. 5 isa front elevation of Fig. 1.

In the said drawings, J represents the jamb or casing, and D the door.Secured to the jamb J by screws is a bracket B, in which is pivoted thearm A on the rivet R. Secured to the outer end of the arm or lever A isa chain O, on the free end of which is a hook H, having the generalshape shown in Fig. 5. In the enlarged end G of the arm A is a slot S,in which the hook H may be inserted. When the arm or lever A is in theposition shown in Figs. 1 and 5, the slot S has the relationship to thebracket B that is shown in Fig. 4.. In this case when the hook H isinserted in the slot S the contact between the hook and the bracket Bprevents the hook and the free end of the arm A being swung outward, andconsequently prevents the door from being opened. The hook H is not onlycurved in the manner shown in Fig. 5, but is made tapering, so that bypressing it down it acts as a key or wedge to force the free end of thearm A toward the door. By this means it is not necessary that thebracket B be accurately located in regard to its distance from the edgeof the door, and the device will work equally well under considerablevariations in height between the face of the door and the face of thejamb. On the arm A at a dis tance a little more than the thickness of anordinary door from the point of connection with the chain O is a boss E,in one side of which is a rubber plug F. The shape of the arm A is suchthat when it is in the position shown in Fig. 1 the rubber alone comesinto contact with the face of the door. The object of this is to preventthe device from marring the face of the door. The length of the chain Ois made as short as will permit the hook H being readily inserted in theslot. S.

Secured to the face of the door on a level with the bracket B is asecond bracket K. The distance between the edge of the door and thebracket K is such that when the door is in the position shown in Fig. 2the chain when hooked to said bracket is very nearly taut. There is,however, enough slack in the chain to permit the arm A to be drawn backby hand far enough to permit the door to be moved past the rubber F. Thenormal sag of the nearly tight chain acts to keep the arm A drawn intothe position shown in Fig. 2, in which position the door will be heldfrom blowing shut by contact with the boss E, while it will be held frombeing opened by the tension of the chain 0. By observing Fig. 5 it willbe seen that the end of the hook is given such a curve that the saidhook must be turned through a long are before it can be released fromwhatever it is engaged with. It will therefore be evident that with thehook H hooked into the bracket K the said hook cannot be released whilethe door is in the position shown in Fig. 2, because the nearly tightchain will not permit the hook to be turned. As a consequence before thedoor can be opened it must first be partially closed,so as to slackenthe chain and permit the hook to be turned. The extreme open position ofthe door that will permit the hook to be released from the bracket K isone just inside of or slightly more closed than that shown by the dottedlines X of Fig. 2. In this position the hook cannot be reached by aperson on the outside of the door. From this it Will be seen that thedoor may be left open some five or six inches, but cannot be opened wideenough to permit any one to pass without first being closed, and whenclosed the holding device cannot be released by any one on the otherside of the door.

By swinging back the arm A and inserting the hook H in the slot S, buton the opposite side of the bracket B, as shown in Fig. 3, the

device is held clear of the door and it (the door) may be freely openedand closed. The position shown in Fig. 3 is the extreme position thatthe arm or lever A can swing to the right when the hook is inserted onthe righthand side of the bracket B. The arm may,

- ing therefor, of a bracket secured to said casing, a lever pivoted tosaid bracket and adapted to engage one side of said door, a secondbracket secured to the other side of the 1 door, and a chain secured tothe free end of said lever and arranged to be attached to the bracket onthe door, said parts being arranged substantially as described so thatsaid door must be closed before said chain can be attached to ordetached from the bracket on said door.

3. The combination with a door and a casing therefor, of a bracketsecured to said casing, a lever pivoted to said bracket and providedwith a boss on one side, located at a pointintermediate the ends, saidlever being movable on its pivot so as to bring said boss into contactwith said door when closed, a yielding cushion secured to said boss andinterposed between it and said door, and a key arranged to hold saidlever securely in such contact.

4. In a door-holding device, a bracket, a door-holding lever pivoted tosaid bracket and provided with a slot adjacent to its pivot, said slotbeing so located that it may appear at either side of said bracket bymoving said lever on its pivot, and ahook connected to said lever andadapted to be inserted in said slot.

5. In a door-holding device, a pivoted lever, a chain secured to the endof the lever, and a hook on said chain adapted to engage a projection orbracket on said door, said hook having its end curved inward beyond thenormal curve of a hook substantially as shown and for the purpose setforth.

6. The combination with a door and its casing, of a bracket secured tothe casing, an arm or lever pivoted to said bracket, a chain secured tosaid arm, a second bracket, and a boss or projection on said arm adaptedto engage the edge of said door, said parts being arranged to hold saiddoor ajar substantially as described.

Signed at Chicago, Illinois, this 14th day of July, 1900.

PAUL F. LEHMANN.

Witnesses:

WM. A. ROWLAND, O. L. REDFIELD.

